BARKSDALE PRESSURE SWITCH E1H-H250-P7 PRICE 250 EURO
Barksdale E1H-H250-P7 Pressure Switch
The Barksdale E1H-H250-P7 is a mechanical piston pressure switch with diaphragm seal, ideal for industrial applications, especially in pressure and vacuum control. This model, highly sought after even as a used one, stands out for its robustness and reliability in the most demanding applications.
Technical Characteristics
- Adjustment Range : This pressure switch can be adjusted to handle pressures from -0.28 to -0.9 bar (vacuum) and from 0.1 to 34 bar, making it versatile for a wide range of applications.
- Process Wetted Materials : Wetted parts include NBR diaphragm, with options for FKM, PTFE, EPDM and CR. The process connection is anodized aluminum, with options of brass, polysulfone, or nickel-plated aluminum.
- Repeatability : ±2% at constant temperature, ensuring precision in pressure control.
- Temperature Range : The pressure switch works effectively in a temperature range from -30°C to +70°C.
- Protection : IP65 protection class, which guarantees resistance to dust and splashes of water.
- Process Connections : Available with 1/4" NPT female threaded connections, with options for 1/8" NPT female, 1/2" NPT male, and G1/4 female.
- Electrical Connections : Screw terminals with M20x1.5 mm cable gland, allowing secure and easy to install connections.
- Weight : About 0.7kg, lightweight and easy to assemble.
Components and Structure
The Barksdale E1H-H250-P7 pressure switch is mainly composed of an anodized aluminum body and a polycarbonate top cover, which ensure a sturdy construction. The diaphragm-sealed piston is the heart of the pressure sensing mechanism, which transforms pressure changes into a mechanical signal that activates or deactivates an electrical contact.
Usage Procedure
Using the Barksdale E1H-H250-P7 is simple and safe:
- Set Point adjustment : To adjust the activation point of the pressure switch, simply turn the adjustment screw clockwise to increase the activation pressure and anticlockwise to decrease it.
- Installation : Connect the pressure switch to the process line via the available threaded connections. Make sure gaskets are properly installed to avoid leaks.
- Electrical Connection : Connect the pressure switch terminals to the control circuit according to the required specifications, using the cable gland for a secure connection.
Compatible Accessories
- Gold Contacts : For intrinsically safe applications, you can opt for gold contacts, which improve corrosion resistance.
- T-connectors : For installations requiring multiple pressure point connections.
- Protective Cases : For further protection against external agents in particularly harsh environments.
Formulas for Calculating Optimal Parameters
- Calculation of Maximum Pressure : Use the formula Pmax=F/AP_{max} = F/A P but x = F / A , where FF F is the force applied on the piston and AA A is the cross-sectional area of the piston .
- Repeatability Verification : To maintain consistent accuracy, monitor the repeatability of the pressure switch with respect to temperature variation.
Maintenance and Evaluation of a Good Used Vehicle
- Maintenance : Regular cleaning of process connections and visual inspection of the diaphragm seal. Replace any damaged components immediately.
- Evaluation of Used Equipment : Check the integrity of the body and connections, the absence of corrosion and the reliability of the response of the electrical contact. A pressure switch in good condition will maintain repeatability and operating parameters without significant changes.
Application Sectors
The Barksdale E1H-H250-P7 is commonly used in machine and tool engineering, dosing systems, plant design and sprinkler system control. Its robust design and intrinsically safe features make it particularly suitable for demanding industrial environments